Night-watchman&#39;s checking apparatus



F. AUBRY-SCHALTENBRANDT."

NIGHT WATCHMANS CHECKING APPARATUS.

APPLICATION man MAR.17.1919.

1,328,223 Patented J an. 13, 1920 Zw/vena?? vprima earn LATENT onion.

FRANCIS AUBRY-SCHALTENBEANDT, OF LA. CHAUX-DE-EONDS, ENVlTZliJlEtLANl).`

NIGHT-VATCHMANS CHECING APPARATUS.

Application led Maren 17, 1919.

. To cZZ whom t may concern:

Be it known that l, FRANCIS AUBRY- Sci-IALTENBRANDT, a citizen of the Republic of Switzerland, ,residing gat vLa"Chaux-de- Fonds, Switzerland, have invented the new and useful Night-VVatchmens Checking Apparatus, of which the following is a specification.

lt has already been proposed to check night watchmen by means of apparatus wherein the passing of the night watchman past a checking station has to be marked upon a sheet of paper inclosed in an apparatus carried by the watchman. This sheet of paper is set in motion by a clockwork which causes it to make one revolution in a varying period of time (12 or 24 hours). The checking is effected by means of keys which are located at the stations along which he must patrol and which are introduced by the latter into the apparatus in order to mark his progress along his round. This marking is effected in the known apparatus by means of pointed members which pierce instantaneously the sheet of paper. The holes .made by these pointed members are not clean and are often liable to be mistaken for accidentally torn places in the paper. They may also be fraudulently pierced aft-er the checking has been effected.

In order to avoid this it has been proposed to construct a marker contained in such a checking apparatus in such a manner that the marks it makes on the sheet of paper cannot be readily imitated.

The present invention has for its object to provide an improved marker for a checking apparatus wherein the marker isoperated by means of keys of different shapes upon a sheet of paper, the improved marker beings; characterized by the feature that it comprises at least one punch and a die between which the sheet of paper passes. These parts are adapted to make a cut or cuts in the paper by the action of the aforesaid key.

The accompanying drawing illustrates a constructional form of .marker according to this invention.

Figure 1 is a plan view and Fig. 2 is a plan section of the marker.

f/ is a block provided with an upright at one end having an inlet orifice I) analogous to lmyhole7 and at its other end with a bracket c upon which is screwed a barrel (Z, in which the key e is placed. This key is Specification of Letters Patent. Patented J 3,11. 13, 192i).

Serial No. 283,213.

so constructed that it can turn `only when it is right home in the barrel.

y The block a is formed with bored holes al., in which are adapted to slide the punches c2 that have a shoulder maintained by means of a spring against a plate f, which latter is pierced with holes through which the punches extend, and bear against leaf springs g, which are held by means of two guards h screwed in the block a.

The block is iXed on a plate that serves as a die and is formed for this purpose with holes that correspond to the punches. Between the block and the die a sufficient space is left to allow of the passage of a sheet of paper. This sheet of paper is perforated in the form of the punch each time that on turning the key, a nose e belonging to the latter rubs against the leaf spring in such a manner as to depress the punch and pierce the paper around the edges of the hole of the die. The situation of this nose on the key is different for eac-h checking station.

The illustrated constructional form of the improved marker is designed for use with a night watchmans watch constructed for siX stations, to each of which there corresponds a key which has in addition to the stop e0 a bit-e arranged so as to act upon one or ythe other of the siX punches. The improved marking apparatus is, however, applicable also to other apparatus besides check watches.

Havinga now particularly described and ascertained the nature of the said invention and in what manner the same is to be performed, I declare that what l claim is 1. A marking attachment with which is adapted to be used a set of operating keys each having a differently positioned lug on the shank thereof including, a plate adapted to be mounted. in spaced relation to a support, a plurality of depressible punches slidable vertically and resiliently supported in the plate so that the lower ends are positioned above the under surface of the plate, key lug bearing members retained transversely above the plate and positioned over the tops of the punches, an upright secured to one end of the plate and provided with a key hole and a key receiving barrel supported above the plate longitudinally thereof and adjacent the key hole.

2. A' marking attachment with which is adapted to be used a set of operating keys each of which is provided with a differently positioned lug,` on the shank including a plate adapted to be inounted in slidable spaced relation to a support and having` a plurality of vertical passages extending therethrough, a plurality of depressible punches slidably mounted and resiliently supported in the passages and having' their lovver ends positioned above the under surface of the plate, key lug bearing members retained transversely above the plate and positioned over the upper ends of the punches, an upright secured to one end of the plate and provided with a key hole and key receiving barrel supported above the plate and extending laterally therefrom so as to lie in spaced relation above the plate and extend through the key hole.

3. EL device as claimed in claim l wherein the hey lug bearing nieinbers consist of a plurality of leaf springs and strips secured to the upper surface of the plate at the opposite sides thereof for retaining the springs in arched positions over the adjacent punches.

In testimony whereof I have signed niy naine to this specification.

FRANCIS AUBRY-SCHALTENBRANDT. 

